So uh... forget what I said.
Unless there is a counterclaim, I think Nick's claim might be genuine.
I mean, the possibility of his having a tertiary TP role existed and still, he preferred to claim a primary TP role instead. With a tertiary TP, he could've claimed he was town-aligned, thus rendering the dreamer's info useless. By claiming a primary TP, he not only remains on the hot seat, but risks being lynched today. This probably means he has been honest in his claim. If I had been him, I would've claimed Toucher as 3rd role. Cops, trackers and watchers wouldn't have bothered to waste their abilities on a person that negated their outcome. And, even if cops had visited him, he would have had a 4-6 day margin to survive. That is, at least, how I see it. And therefore:
[Evict] Castiel
For obvious reasons.